ECP2010
/
ECP2010H
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Replace the old line fuse.
In the holder insert new fuse from
unit accessories,
its value is
stated on unit lable
.
Insert the fuse holder back.
Push the fuse holder all the way
inside.
10. T
ROUBLESHOOTING
Problem
Caused by / Conditions
Solution
Leaking liquid from washing
heads.
Damaged seal in pumping
head.
Replace the seal
immediately. The pump must
not be used with damaged
seal.
Pressure pulsation.
Pressure sometime suddenly
decreases.
Column, injection valve or
other equipment connected
after the pump.
Test if the problem persists
without any equipment after
the pump. Then try to connect
any reliable source of
hydrodynamic resistance
(column, reduction valve).
Bubbles.
Check all connections on
capillaries and tubing before,
in and after the pump.
Try to purge the pump again
and watch tubing after
connected mobile phase filter,
for bubble formation. If any
bubbles are formed there,
exchange/rinse this filter.
You can use degassing unit.
Bad check valve.
Try to replace check valve
(see
).
Impurity in check valve.
Purge it with air flow or insert
in ultrasound bath (see
).
